#include<stdio.h>
#define PI 3.1415926
#define CIRCLE(R,L,S,V) L=2*PI*R;S=PI*R*R;V=4.0/3.0*PI*R*R*R

int main()
{
 double r,l,s,v;
 printf("please enter r:");
 scanf("%lf",&r);
 CIRCLE(r,l,s,v);
 printf("r=%6.2lf\nl=%6.2lf\ns=%6.2lf\nv=%6.2lf\n",r,l,s,v);
 return 0;
}